| 摘要 |
<p>PURPOSE:To obtain the product of which the thickness accuracy of the tip part of coil is stable by determining the temp. at the target position in finish set calculation, executing the set calculation of finishing mill based on that, determing the gap and speed of roll and rolling. CONSTITUTION:The timing signal of the position for measuring the temp. at the tail end part of bar is generated in consideration of the coiling/uncoiling motion of a coil box CB. The temp. at each point on the outlet side of the coil box CB is determined with a temp. detector RDTC by inputting this signal and the temp. at each point. Based on these temps. and the cut length in a crop shear that is calculated based on the output signal from the speed detector VCB of the coil box CB and rotation detector VCS of the crop shear CS, the temp. at the target position in the finish set calculation is determined. The set calculation of finishing mills F1-N is executed based on the temp. at the target position with a calculating device FSUC for finish setting. And, rolling is done by determining the roll gap and speed. In this way, the predictive accuracy of the temp. at the outlet side of the coil box can be greatly improved.</p> |
